Publications Print Ma J, Dragojevic S, Remmes NB, Mendelson NL, Kloeber JA, Ebner DK, Wu Z, Gunn H, Merrell K, Hallemeier CL, Haddock MG, Jethwa K, Lou Z, Mutter RW, Callaghan C. Linear Energy Transfer Optimized Proton Therapy for Rectal Cancer International Journal of Radiation Oncology, Biology, Physics. 2025. Florez MA, De B, Kowalchuk R, Tang C, Bishop AJ, Kouzy R, Amini B, Briere T, Beckham TH, Wang C, Li J, Tatsui CE, Rhines LD, Brown PD, Merrell K, Ghia AJ. Validation of the prognostic index for spine metastasis (PRISM) for stratifying survival in patients treated with spinal stereotactic body radiation. Radiother Oncol. 2024 Oct 2; 201:110570 Epub 2024 Oct 02 View PubMed Gunn HJ, Zaniletti I, Breen WG, Leavitt T, Bogan A, Mahajan A, Brown PD, Yan E, Vora SA, Merrell KW, Ashman JB, Peterson JL, Leenstra JL, Wilson ZC, Laughlin BS, Laack NN, DeWees TA. Establishing the minimal clinically important difference of the Brief Fatigue Inventory for brain or CNS cancer patients undergoing radiotherapy. Neurooncol Pract. 2024 Oct; 11 (5):633-639 Epub 2024 Apr 27 View PubMed Kloeber JA, Ebner DK, Jethwa KR, Merrell KW, Halfdanarson TR, Callaghan CM. Proton Stereotactic Body Radiotherapy for Liver Metastases From Malignant Pancreatic Insulinoma. JCEM Case Rep. 2024 Oct; 2 (10):luae175 Epub 2024 Sept 27 View PubMed Merrell KW, Konney TO, Acheamfour O, Lucido J, Aduse-Poku AY, Kumar A, Ansah MB, Amankwa AT, Shumway D, Awittor FK, Badu-Peprah A, Fonkoua LAAK, Hendrickson AEW, Boakye E, Adjei EK, Kyei I, Kemper K, Rank M, Peethambaram PP, Spangenberg K, Sorenson K, Hearrold M, Garda A, Graham R, Lang K, Adom J, Achiaa R, Jakub J, Amo BD, Osei-Bonsu E, Camacho R, Addison ECDK. Participant Evaluation of a Multi-disciplinary Oncology Preceptorship Training Program for Oncology Health Professionals from Kumasi, Ghana. J Cancer Educ. 2024 Aug; 39 (4):360-367 Epub 2024 Mar 20 View PubMed Hallemeier CL, Merrell KW, Neben-Wittich MA, Jethwa KR, Yoon HH, Pitot HC, Blackmon S, Shen KR, Tryggestad EJ, Giffey B, Kazemba BD, Viehman JK, Harmsen WS, Haddock MG. A Prospective Pilot Study of Pencil Beam Scanning Proton Radiation Therapy as a Component of Trimodality Therapy for Esophageal Cancer. Adv Radiat Oncol. 2024 Aug; 9 (8):101547 Epub 2024 June 06 View PubMed Kowalchuk RO, Mullikin TC, Spears GM, Johnson-Tesch BA, Rose PS, Siontis BL, Kun Kim D, Costello BA, Morris JM, Gao RW, Shiraishi S, Lucido JJ, Olivier KR, Owen D, Stish BJ, Waddle MR, Laack NN, Park SS, Brown PD, Merrell KW. Assessment of minimum target dose as a predictor of local failure after spine SBRT. Radiother Oncol. 2024 Jun; 195:110260 Epub 2024 Mar 27 View PubMed Gits HC, Khosravi Flanigan MA, Kapplinger JD, Reisenauer JS, Eiken PW, Breen WG, Vu LH, Welch BT, Harmsen WS, Day CN, Olivier KR, Park SS, Garces YI, Hallemeier CL, Merrell KW, Ashman JB, Schild SE, Grams MP, Lucido JJ, Shen KR, Cassivi SD, Wigle D, Nichols FC, Blackmon S, Tapias LF, Callstrom MR, Owen D. Sublobar Resection, Stereotactic Body Radiation Therapy, and Percutaneous Ablation Provide Comparable Outcomes for Lung Metastasis-Directed Therapy. Chest. 2024 May; 165 (5):1247-1259 Epub 2023 Dec 14 View PubMed Sharifzadeh Y, Breen WG, Harmsen WS, Amundson AC, Garda AE, Routman DM, Waddle MR, Merrell KW, Hallemeier CL, Laack NN, Kollengode A, Corbin KS. Integration of Telemedicine Consultation Into a Tertiary Radiation Oncology Department: Predictors of Use, Treatment Yield, and Effects on Patient Population. JCO Clin Cancer Inform. 2024 Apr; 8:e2300239 View PubMed Joseph A, Akinsete A, Adeneye S, Balogun O, Awofeso O, Oladipo A, Ajose A, Elhamamsi I, Merrell K, Ngwa W, Puthoff D, Shour AR, Onitilo A. Feasibility and Safety of Implementing Volumetric Arc Therapy (VMAT) for Pediatric Craniospinal Irradiation in a Low-Middle-Income Region: The Nigerian Experience. Adv Radiat Oncol. 2024 Feb; 9 (2):101325 Epub 2023 July 28 View PubMed Zaniletti I, Gunn HJ, Hallemeier CL, Laughlin BS, Leavitt TR, Haddock MG, Merrell KW, Leenstra JL, May BC, Ashman JB, DeWees TA. Determining the Minimal Clinically Important Difference of the Functional Assessment of Cancer Therapy Hepatobiliary Questionnaire to Evaluate the Change in the Quality of Life of Patients With Pancreatic Cancer During Radiation Therapy. Int J Radiat Oncol Biol Phys. 2024 Jan 1; 118 (1):137-141 Epub 2023 Aug 14 View PubMed Joseph A, Akinsete AM, Lasebikan NN, Adeneye S, Awofeso OM, Oladipo AT, Ajose AO, Ojo O, Merrell K, Ngwa W, Puthoff DS, Onitilo AA. The Landscape of Pediatric Radiation Oncology in Nigeria. JCO Glob Oncol. 2024 Jan; 10:e2300219 View PubMed Pennington Z, Mikula AL, Lakomkin N, Martini M, Clarke MJ, Sebastian AS, Freedman BA, Rose PS, Karim SM, Nassr A, Bydon M, Kowalchuk RO, Merrell KW, Krauss WE, Fogelson JL, Elder BD. Comparison of Hounsfield units and vertebral bone quality score for the prediction of time to pathologic fracture in mobile spine metastases treated with radiotherapy. J Neurosurg Spine. 2024 Jan 1; 40 (1):19-27 Epub 2023 Oct 13 View PubMed Mutter RW, Giri S, Fruth BF, Remmes NB, Boughey JC, Harless CA, Ruddy KJ, McGee LA, Afzal A, Gao RW, Shumway DA, Vern-Gross TZ, Villarraga HR, Kenison SL, Kang Y, Wong WW, Stish BJ, Merrell KW, Yan ES, Park SS, Corbin KS, Vargas CE. Conventional versus hypofractionated postmastectomy proton radiotherapy in the USA (MC1631): a randomised phase 2 trial. Lancet Oncol. 2023 Oct; 24 (10):1083-1093 Epub 2023 Sept 08 View PubMed Jeans EB, Ebner DK, Takiyama H, Qualls K, Cunningham DA, Waddle MR, Jethwa KR, Harmsen WS, Hubbard JM, Dozois EJ, Mathis KL, Tsuji H, Merrell KW, Hallemeier CL, Mahajan A, Yamada S, Foote RL, Haddock MG. Comparing Oncologic Outcomes and Toxicity for Combined Modality Therapy vs. Carbon-Ion Radiotherapy for Previously Irradiated Locally Recurrent Rectal Cancer. Cancers (Basel). 2023 Jun 5; 15 (11) Epub 2023 June 05 View PubMed Imamura K, Deisher AJ, Dickow J, Rettmann ME, Yasin OZ, Pepin MD, Hohmann S, Konishi H, Suzuki A, Newman LK, Sun X, Kruse JJ, Merrell KW, Herman MG, Foote RL, Packer DL. Early Impact of Proton Beam Therapy on Electrophysiological Characteristics in a Porcine Model. Circ Arrhythm Electrophysiol. 2023 Jun; 16 (6):e011179 Epub 2023 May 15 View PubMed Choo R, Hillman DW, Mitchell C, Daniels T, Vargas C, Rwigema JC, Corbin K, Keole S, Vora S, Merrell K, Stish B, Pisansky T, Davis BJ, Amundson A, Wong W. Late Toxicity of Moderately Hypofractionated Intensity-Modulated Proton Therapy Treating the Prostate and Pelvic Lymph Nodes for High-Risk Prostate Cancer. Int J Radiat Oncol Biol Phys. 2023 Apr 1; 115 (5):1085-1094 Epub 2022 Nov 22 View PubMed Kowalchuk RO, Mullikin TC, Florez M, De BS, Spears GM, Rose PS, Siontis BL, Kim DK, Costello BA, Morris JM, Marion JT, Johnson-Tesch BA, Gao RW, Shiraishi S, Lucido JJ, Trifiletti DM, Olivier KR, Owen D, Stish BJ, Waddle MR, Laack NN, Park SS, Brown PD, Ghia AJ, Merrell KW. Development and validation of a recursive partitioning analysis-based pretreatment decision-making tool identifying ideal candidates for spine stereotactic body radiation therapy. Cancer. 2023 Mar 15; 129(6):956-965. Epub 2022 Dec 26. View PubMed Kowalchuk RO, Spears GM, Morris LK, Owen D, Yoon HH, Jethwa K, Chuong MD, Ferris MJ, Haddock MG, Hallemeier CL, Wigle D, Lin SH, Merrell KW. Risk stratification of postoperative cardiopulmonary toxicity after trimodality therapy for esophageal cancer. Front Oncol. 2023; 13:1081024 Epub 2023 Feb 09 View PubMed Kowalchuk R, Mullikin TC, Breen W, Gits HC, Florez M, De B, Harmsen WS, Rose PS, Siontis BL, Costello BA, Morris JM, Lucido JJ, Olivier KR, Stish B, Laack NN, Park S, Owen D, Ghia AJ, Brown PD, Merrell KW. Development and validation of a unifying pre-treatment decision tool for intracranial and extracranial metastasis-directed radiotherapy. Front Oncol. 2023; 13:1095170 Epub 2023 Mar 27 View PubMed Dimou A, Lo YC, Merrell KW, Halling KC, Mansfield AS. Small Cell Transformation in a Patient With RET Fusion-Positive Lung Adenocarcinoma on Pralsetinib. JCO Precis Oncol. 2022 Dec; 6:e2200478 View PubMed Yu NY, DeWees TA, Voss MM, Breen WG, Chiang JS, Ding JX, Daniels TB, Owen D, Olivier KR, Garces YI, Park SS, Sarkaria JN, Yang P, Savvides PS, Ernani V, Liu W, Schild SE, Merrell KW, Sio TT. Cardiopulmonary Toxicity Following Intensity-Modulated Proton Therapy (IMPT) Versus Intensity-Modulated Radiation Therapy (IMRT) for Stage III Non-Small Cell Lung Cancer. Clin Lung Cancer. 2022 Dec; 23 (8):e526-e535 Epub 2022 Aug 10 View PubMed Mikula AL, Pennington Z, Lakomkin N, Clarke MJ, Rose PS, Bydon M, Freedman B, Sebastian AS, Lu L, Kowalchuk RO, Merrell KW, Fogelson JL, Elder BD. Independent predictors of vertebral compression fracture following radiation for metastatic spine disease. J Neurosurg Spine. 2022 Oct 1; 37 (4):617-623 Epub 2022 Apr 15 View PubMed Wong WW, Hillman DW, Daniels TB, Vargas CE, Rwigema JC, Corbin KS, Keole SR, Merrell KW, Stish BJ, Pisansky TM, Davis BJ, Mitchell CM, Choo R. A Phase II prospective study of hypofractionated proton therapy of prostate and pelvic lymph nodes: Acute effects on patient-reported quality of life. Prostate. 2022 Oct; 82 (14):1338-1345 Epub 2022 July 05 View PubMed Abdelrahman AM, Goenka AH, Alva-Ruiz R, Yonkus JA, Leiting JL, Graham RP, Merrell KW, Thiels CA, Hallemeier CL, Warner SG, Haddock MG, Grotz TE, Tran NH, Smoot RL, Ma WW, Cleary SP, McWilliams RR, Nagorney DM, Halfdanarson TR, Kendrick ML, Truty MJ. FDG-PET Predicts Neoadjuvant Therapy Response and Survival in Borderline Resectable/Locally Advanced Pancreatic Adenocarcinoma. J Natl Compr Canc Netw. 2022 Sep; 20 (9):1023-1032.e3 View PubMed Gao RW, Day CN, Yu NY, Bush A, Amundson AC, Prodduturvar P, Majeed U, Butts E, Oliver T, Schwecke AJ, Moffett JN, Routman DM, Breen WG, Potter AL, Rivera-Concepcion J, Hoppe BS, Schild SE, Sio TT, Lou Y, Ernani V, Ko S, Olivier KR, Merrell KW, Garces YI, Manochakian R, Harmsen WS, Leventakos K, Owen D. Dosimetric predictors of pneumonitis in locally advanced non-small cell lung cancer patients treated with chemoradiation followed by durvalumab. Lung Cancer. 2022 Aug; 170:58-64 Epub 2022 June 13 View PubMed Kowalchuk RO, Mullikin TC, Harmsen WS, Rose PS, Siontis BL, Kim DK, Costello BA, Morris JM, Marion JT, Johnson-Tesch BA, Gao RW, Shiraishi S, Lucido JJ, Olivier KR, Owen D, Stish BJ, Laack NN, Park SS, Brown PD, Merrell KW. Development and internal validation of a recursive partitioning analysis-based model predictive of pain flare incidence after spine stereotactic body radiation therapy. Practical Radiation Oncology. 2022 Jul-aug; 12 (4):E269-77 Kowalchuk RO, Johnson-Tesch BA, Marion JT, Mullikin TC, Harmsen WS, Rose PS, Siontis BL, Kim DK, Costello BA, Morris JM, Gao RW, Shiraishi S, Lucido JJ, Sio TT, Trifiletti DM, Olivier KR, Owen D, Stish BJ, Waddle MR, Laack NN, Park SS, Brown PD, Merrell KW. Development and Assessment of a Predictive Score for Vertebral Compression Fracture After Stereotactic Body Radiation Therapy for Spinal Metastases. JAMA Oncol. 2022 Mar 01; 8(3):412-419. View PubMed Guo T, Chu L, Chu X, Yang X, Li Y, Zhou Y, Xu D, Zhang J, Wang S, Hu J, Chu Q, Moran T, Cho WC, Merrell KW, Rizzo S, Liu Y, Ni J, Zhu Z. Brain metastases, patterns of intracranial progression, and the clinical value of upfront cranial radiotherapy in patients with metastatic non-small cell lung cancer treated with PD-1/PD-L1 inhibitors. Transl Lung Cancer Res. 2022 Feb; 11 (2):173-187 View PubMed Kowalchuk RO, Mullikin TC, Harmsen WS, Rose PS, Siontis BL, Kim DK, Costello BA, Morris JM, Marion JT, Johnson-Tesch BA, Gao RW, Shiraishi S, Lucido JJ, Olivier KR, Owen D, Stish BJ, Laack NN, Park SS, Brown PD, Merrell KW. Development and Internal Validation of a Recursive Partitioning Analysis-Based Model Predictive of Pain Flare Incidence After Spine Stereotactic Body Radiation Therapy. Pract Radiat Oncol. 2022 Jul-Aug; 12(4):e269-e277. Epub 2022 Feb 10. View PubMed Akinduro OO, De Biase G, Goyal A, Meyer JH, Sandhu SJS, Kowalchuk RO, Trifiletti DM, Sheehan J, Merrell KW, Vora SA, Broderick DF, Clarke MJ, Bydon M, McClendon J Jr, Kalani MA, Quiñones-Hinojosa A, Abode-Iyamah K. Focused versus conventional radiotherapy in spinal oncology: is there any difference in fusion rates and pseudoarthrosis? J Neurooncol. 2022 Jan; 156(2):329-339. Epub 2022 Jan 07. View PubMed Kowalchuk RO, Mullikin TC, Kim DK, Morris JM, Ebner DK, Harmsen WS, Merrell KW, Beriwal S, Waddle MR, Kim H. Cost-Effectiveness of Treatment Strategies for Spinal Metastases. Pract Radiat Oncol. 2022 May-Jun; 12(3):236-244. Epub 2022 Jan 16. View PubMed Lehrer EJ, Kowalchuk RO, Ruiz-Garcia H, Merrell KW, Brown PD, Palmer JD, Burri SH, Sheehan JP, Quninoes-Hinojosa A, Trifiletti DM. Preoperative stereotactic radiosurgery in the management of brain metastases and gliomas. Front Surg. 2022; 9:972727 Epub 2022 Oct 24 View PubMed Lucido JJ, Mullikin TC, Abraha F, Harmsen WS, Vaishnav BD, Brinkmann DH, Kowalchuk RO, Marion JT, Johnson-Tesch BA, El Sherif O, Brown PD, Rose PS, Owen D, Morris JM, Waddle MR, Siontis BL, Stish BJ, Pafundi DH, Laack NN, Olivier KR, Park SS, Merrell KW. Single and Multifraction Spine Stereotactic Body Radiation Therapy and the Risk of Radiation Induced Myelopathy. Adv Radiat Oncol. 2022 Nov-Dec; 7(6):101047. Epub 2022 Aug 13. View PubMed Mullikin TC, Pepin KM, Evans JE, Venkatesh SK, Ehman RL, Merrell KW, Haddock MG, Harmsen WS, Herman MG, Hallemeier CL. Evaluation of Pretreatment Magnetic Resonance Elastography for the Prediction of Radiation-Induced Liver Disease. Adv Radiat Oncol. 2021 Nov-Dec; 6 (6):100793 Epub 2021 Sept 09 View PubMed Merrell KW, DeWees TA, Osei-Bonsu EB, Acheamfour O, Manirakiza AVC, Avery SM, Mallum AAI, Adjei E, Garda AE, Steiner T, Leavitt T, Lucido J, Ndlovu N, Ngwa W, Ntekim A, Vanderpuye V, Addison ECDK, Woldetsadik ES, Ochieng P Sr, Begna KH. COVID-19 in Sub-Saharan Africa: A Multi-Institutional Survey of the Impact of the Global Pandemic on Cancer Care Resources. Int J Radiat Oncol Biol Phys. 2021 Nov 1; 111 (3S):e349-e350 View PubMed Sebastian NT, Webb A, Merrell KW, Koay EJ, Wolfe AR, Zhang L, Wilhite TJ, Elganainy D, Robb R, Chen W, Cloyd J, Dillhoff M, Tsung A, Abushahin L, Noonan A, Williams TM. Development of a MicroRNA Signature Predictive of Recurrence and Survival in Pancreatic Ductal Adenocarcinoma. Cancers (Basel). 2021 Oct 15; 13 (20) View PubMed Gits HC, Tang AH, Harmsen WS, Bamlet WR, Graham RP, Petersen GM, Smyrk TC, Mahipal A, Kowalchuk RO, Ashman JB, Rule WG, Owen D, Neben Wittich MA, McWilliams RR, Halfdanarson T, Ma WW, Sio TT, Cleary SP, Truty MJ, Haddock MG, Hallemeier CL, Merrell KW. Intact SMAD-4 is a predictor of increased locoregional recurrence in upfront resected pancreas cancer receiving adjuvant therapy. J Gastrointest Oncol. 2021 Oct; 12 (5):2275-2286 View PubMed Qiu B, Cai K, Chen C, Chen J, Chen KN, Chen QX, Cheng C, Dai TY, Fan J, Fan Z, Hu J, Hu WD, Huang YC, Jiang GN, Jiang J, Jiang T, Jiao WJ, Li HC, Li Q, Liao YD, Liu HX, Liu JF, Liu L, Liu Y, Long H, Luo QQ, Ma HT, Mao NQ, Pan XJ, Tan F, Tan LJ, Tian H, Wang D, Wang WX, Wei L, Wu N, Wu QC, Xiang J, Xu SD, Yang L, Zhang H, Zhang L, Zhang P, Zhang Y, Zhang Z, Zhu K, Zhu Y, Um SW, Oh IJ, Tomita Y, Watanabe S, Nakada T, Seki N, Hida T, Sasada S, Uchino J, Sugimura H, Dermime S, Cappuzzo F, Rizzo S, Cho WC, Crucitti P, Longo F, Lee KY, De Ruysscher D, Vanneste BGL, Furqan M, Sieren JC, Yendamuri S, Merrell KW, Molina JR, Metro G, Califano R, Bongiolatti S, Provencio M, Hofman P, Gao S, He J. Expert consensus on perioperative immunotherapy for local advanced non-small cell lung cancer. Transl Lung Cancer Res. 2021 Sep; 10 (9):3713-3736 View PubMed Mohiuddin JJ, Jethwa KR, Grandhi N, Breen WG, Wang X, Anvari A, Lin H, Sandhyavenu H, Doucette A, Plastaras JP, Rule WG, Metz JM, Merrell KW, Sio TT, Ashman JB, Haddock MG, Ben-Josef E, Hallemeier CL, Wojcieszynski AP. Multi-institutional Comparison of Intensity Modulated Photon Versus Proton Radiation Therapy in the Management of Squamous Cell Carcinoma of the Anus. Adv Radiat Oncol. 2021 Sep-Oct; 6 (5):100744 Epub 2021 June 24 View PubMed Choo R, Hillman DW, Daniels T, Vargas C, Rwigema JC, Corbin K, Keole S, Vora S, Merrell K, Stish B, Pisansky T, Davis B, Amundson A, Wong W. Proton Therapy of Prostate and Pelvic Lymph Nodes for High Risk Prostate Cancer: Acute Toxicity. Int J Part Ther. 2021 Fall; 8 (2):41-50 Epub 2021 Sept 14 View PubMed Garant A, Spears G, Routman D, Whitaker T, Liao Z, Harmsen W, Liu A, Haddock M, Hallemeier C, Lin S, Merrell K. A Multi-Institutional Analysis of Radiation Dosimetric Predictors of Toxicity After Trimodality Therapy for Esophageal Cancer. Pract Radiat Oncol. 2021 Jul-Aug; 11 (4):e415-e425 Epub 2021 Jan 21 View PubMed Bhangoo RS, Mullikin TC, Ashman JB, Cheng TW, Golafshar MA, DeWees TA, Johnson JE, Shiraishi S, Liu W, Hu Y, Merrell KW, Haddock MG, Krishnan S, Rule WG, Sio TT, Hallemeier CL. Intensity Modulated Proton Therapy for Hepatocellular Carcinoma: Initial Clinical Experience. Adv Radiat Oncol. 2021 Jul-Aug; 6 (4):100675 Epub 2021 Mar 02 View PubMed Breen WG, Jeans EB, Gergelis KR, Garces YI, Park SS, Merrell KW, Peikert TD, Mansfield AS, Wigle DA, Harmsen WS, Ellerbusch DC, Olivier KR, John Lucido J, Owen D. Ablative radiotherapy for ultracentral lung cancers: Dosimetric, geometric, and volumetric predictors of outcomes and toxicity. Radiother Oncol. 2021 May; 158:246-252 Epub 2021 Mar 10 View PubMed Jethwa KR, Day CN, Sandhyavenu H, Gonuguntla K, Harmsen WS, Breen WG, Routman DM, Garda AE, Hubbard JM, Halfdanarson TR, Neben-Wittich MA, Merrell KW, Hallemeier CL, Haddock MG. Intensity modulated radiotherapy for anal canal squamous cell carcinoma: A 16-year single institution experience. Clin Transl Radiat Oncol. 2021 May; 28:17-23 Epub 2021 Feb 23 View PubMed Carr CM, Benson JC, DeLone DR, Diehn FE, Kim DK, Merrell KW, Nagelschneider AA, Madhavan AA, Johnson DR. Intracranial long-term complications of radiation therapy: an image-based review. Neuroradiology. 2021 Apr; 63 (4):471-482 Epub 2021 Jan 04 View PubMed Teyateeti A, Geno CS, Stafford SS, Mahajan A, Yan ES, Merrell KW, Laack NN, Parney IF, Brown PD, Jethwa KR. Does the dural resection bed need to be irradiated? Patterns of recurrence and implications for postoperative radiotherapy for temporal lobe gliomas. Neurooncol Pract. 2021 Apr; 8 (2):190-198 Epub 2020 Nov 04 View PubMed Leng X, Wei S, Mei J, Deng S, Yang Z, Liu Z, Guo C, Deng Y, Xia L, Cheng J, Zhao K, Gan F, Li C, Merrell KW, Molina JR, Metro G, Liu L. Identifying the prognostic significance of B3GNT3 with PD-L1 expression in lung adenocarcinoma. Transl Lung Cancer Res. 2021 Feb; 10 (2):965-980 View PubMed Kowalchuk RO, Lester SC, Graham RP, Harmsen WS, Zhang L, Halfdanarson TR, Smoot RL, Gits HC, Ma WW, Owen D, Mahipal A, Miller RC, Wittich MAN, Cleary SP, McWilliams RR, Haddock MG, Hallemeier CL, Truty MJ, Merrell KW. Predicting Adverse Pathologic Features and Clinical Outcomes of Resectable Pancreas Cancer With Preoperative CA 19-9. Front Oncol. 2021; 11:651119 Epub 2021 May 11 View PubMed Breen WG, Jethwa KR, Yu NY, Spears GM, Harmsen WS, Miller RC, Ashman JB, Rule WG, Sio TT, Neben-Wittich MA, Haddock MG, Mahipal A, Truty MJ, Hallemeier CL, Merrell KW. Patient-Reported Quality of Life Before and After Chemoradiation for Intact Pancreas Cancer: A Prospective Registry Study. Pract Radiat Oncol. 2021 Jan-Feb; 11 (1):e63-e69 Epub 2020 July 23 View PubMed Hohmann S, Deisher AJ, Konishi H, Rettmann ME, Suzuki A, Merrell KW, Kruse JJ, Fitzgerald ST, Newman LK, Parker KD, Monahan KH, Foote RL, Herman MG, Packer DL. Catheter-free ablation of infarct scar through proton beam therapy: Tissue effects in a porcine model. Heart Rhythm. 2020 Dec; 17 (12):2190-2199 Epub 2020 July 14 View PubMed Jethwa KR, Sannapaneni S, Mullikin TC, Harmsen WS, Petersen MM, Antharam P, Laughlin B, Mahipal A, Halfdanarson TR, Merrell KW, Neben-Wittich M, Sio TT, Haddock MG, Hallemeier CL. Chemoradiotherapy for patients with locally advanced or unresectable extra-hepatic biliary cancer. J Gastrointest Oncol. 2020 Dec; 11 (6):1408-1420 View PubMed Breen WG, Leventakos K, Dong H, Merrell KW. Radiation and immunotherapy: emerging mechanisms of synergy. J Thorac Dis. 2020 Nov; 12 (11):7011-7023 View PubMed Jeans EB, Jethwa KR, Harmsen WS, Neben-Wittich M, Ashman JB, Merrell KW, Giffey B, Ito S, Kazemba B, Beltran C, Haddock MG, Hallemeier CL. Clinical Implementation of Preoperative Short-Course Pencil Beam Scanning Proton Therapy for Patients With Rectal Cancer. Adv Radiat Oncol. 2020 Sep-Oct; 5 (5):865-870 Epub 2020 May 22 View PubMed Garda AE, Navin PJ, Merrell KW, Martenson JA, Neben Wittich MA, Haddock MG, Sio TT, Rule WG, Ashman JB, Sheedy SP, Hallemeier CL. Patterns of inguinal lymph node metastases in anal canal cancer and recommendations for elective clinical target volume (CTV) delineation. Radiother Oncol. 2020 Aug; 149:128-133 Epub 2020 May 15 View PubMed Himes BT, Arnett AL, Merrell KW, Gates MJ, Bhargav AG, Raghunathan A, Brown DA, Burns TC, Parney IF. Glioblastoma Recurrence Versus Treatment Effect in a Pathology-Documented Series. Can J Neurol Sci. 2020 Jul; 47 (4):525-530 Epub 2020 Feb 20 View PubMed Jethwa KR, Jang S, Mullikin TC, Harmsen WS, Petersen MM, Olivier KR, Park SS, Neben-Wittich MA, Hubbard JM, Sandhyavenu H, Whitaker TJ, Waltman LA, Kipp BR, Merrell KW, Haddock MG, Hallemeier CL. Association of tumor genomic factors and efficacy for metastasis-directed stereotactic body radiotherapy for oligometastatic colorectal cancer. Radiother Oncol. 2020 May; 146:29-36 Epub 2020 Feb 27 View PubMed Breen WG, Garces YI, Olivier KR, Park SS, Merrell KW, Nichols FC, Peikert TD, Molina JR, Mansfield AS, Roden AC, Blackmon SH, Wigle DA. Surgery for Mesothelioma After Radiation Therapy (SMART); A Single Institution Experience. Front Oncol. 2020; 10:392 Epub 2020 Mar 24 View PubMed Beltran C, Schultz HL, Anand A, Merrell K. Radiation biology considerations of proton therapy for gastrointestinal cancers. J Gastrointest Oncol. 2020 Feb; 11 (1):225-230 View PubMed van Rossum PSN, Deng W, Routman DM, Liu AY, Xu C, Shiraishi Y, Peters M, Merrell KW, Hallemeier CL, Mohan R, Lin SH. Prediction of Severe Lymphopenia During Chemoradiation Therapy for Esophageal Cancer: Development and Validation of a Pretreatment Nomogram. Pract Radiat Oncol. 2020 Jan - Feb; 10 (1):e16-e26 Epub 2019 July 29 View PubMed Hohmann S, Deisher AJ, Suzuki A, Konishi H, Rettmann ME, Merrell KW, Kruse JJ, Newman LK, Parker KD, Monahan KH, Foote RL, Herman MG, Packer DL. Left ventricular function after noninvasive cardiac ablation using proton beam therapy in a porcine model. Heart Rhythm. 2019 Nov; 16 (11):1710-1719 Epub 2019 Apr 18 View PubMed Garant A, Whitaker TJ, Spears GM, Routman DM, Harmsen WS, Wilhite TJ, Ashman JB, Sio TT, Rule WG, Neben Wittich MA, Martenson JA, Tryggestad EJ, Yoon HH, Blackmon S, Merrell KW, Haddock MG, Hallemeier CL. A Comparison of Patient-Reported Health-Related Quality of Life During Proton Versus Photon Chemoradiation Therapy for Esophageal Cancer. Pract Radiat Oncol. 2019 Nov; 9 (6):410-417 Epub 2019 July 13 View PubMed Sio TT, Mohindra P, Yu NY, Ashman JB, Daniels TB, Merrell KW, Schild SE. The Search for Optimal Stereotactic Body Radiotherapy Dose in Inoperable, Centrally Located Non-Small-Cell Lung Cancer Continues. J Clin Oncol 2019 Oct 10; 37 (29):2697-2699 Epub 2019 Aug 29 View PubMed Merrell KW, Davis BJ, Goulet CC, Furutani KM, Mynderse LA, Harmsen WS, Wilson TM, McLaren RH, Deufel CL, Birckhead BJ, Funk RK, McMenomy BP, Stish BJ, Choo CR. Reducing seed migration to near zero with stranded-seed implants: Comparison of seed migration rates to the chest in 1000 permanent prostate brachytherapy patients undergoing implants with loose or stranded seeds. Brachytherapy. 2019 May - Jun; 18 (3):306-312 Epub 2019 Mar 08 View PubMed Arnett ALH, Mou B, Owen D, Park SS, Nelson K, Hallemeier CL, Sio T, Garces YI, Olivier KR, Merrell KW. Long-term Clinical Outcomes and Safety Profile of SBRT for Centrally Located NSCLC. Adv Radiat Oncol. 2019 Apr-Jun; 4 (2):422-428 Epub 2019 Jan 24 View PubMed Xi M, Yang Y, Zhang L, Yang H, Merrell KW, Hallemeier CL, Shen RK, Haddock MG, Hofstetter WL, Maru DM, Ho L, Wu CC, Liu M, Lin SH. Multi-institutional Analysis of Recurrence and Survival After Neoadjuvant Chemoradiotherapy of Esophageal Cancer: Impact of Histology on Recurrence Patterns and Outcomes. Ann Surg. 2019 Apr; 269 (4):663-670 View PubMed Routman DM, Garant A, Lester SC, Day CN, Harmsen WS, Sanheuza CT, Yoon HH, Neben-Wittich MA, Martenson JA, Haddock MG, Hallemeier CL, Merrell KW. A Comparison of Grade 4 Lymphopenia With Proton Versus Photon Radiation Therapy for Esophageal Cancer. Adv Radiat Oncol. 2019 Jan-Mar; 4 (1):63-69 Epub 2019 Jan 17 View PubMed Goense L, Merrell KW, Arnett AL, Hallemeier CL, Meijer GJ, Ruurda JP, Hofstetter WL, van Hillegersberg R, Lin SH. Validation of a Nomogram Predicting Survival After Trimodality Therapy for Esophageal Cancer. Ann Thorac Surg. 2018 Nov; 106 (5):1541-1547 Epub 2018 June 19 View PubMed Xi M, Hallemeier CL, Merrell KW, Liao Z, Murphy MAB, Ho L, Hofstetter WL, Mehran R, Lee JH, Bhutani MS, Weston B, Maru DM, Komaki R, Ajani JA, Lin SH. Recurrence Risk Stratification After Preoperative Chemoradiation of Esophageal Adenocarcinoma. Ann Surg. 2018 Aug; 268 (2):289-295 View PubMed Jethwa KR, Tryggestad EJ, Whitaker TJ, Giffey BT, Kazemba BD, Neben-Wittich MA, Merrell KW, Haddock MG, Hallemeier CL. Initial experience with intensity modulated proton therapy for intact, clinically localized pancreas cancer: Clinical implementation, dosimetric analysis, acute treatment-related adverse events, and patient-reported outcomes. Adv Radiat Oncol. 2018 Jul-Sep; 3 (3):314-321 Epub 2018 Apr 13 View PubMed Leiting JL, Bergquist JR, Hernandez MC, Merrell KW, Folpe AL, Robinson SI, Nagorney DM, Truty MJ, Grotz TE. Radiation Therapy for Retroperitoneal Sarcomas: Influences of Histology, Grade, and Size. Sarcoma. 2018; 2018:7972389 Epub 2018 Dec 05 View PubMed Arnett AL, Packard AT, Mara K, Mansfield AS, Wigle DA, Haddock MG, Park SS, Olivier KR, Garces YI, Merrell KW. FDG-PET parameters as predictors of pathologic response and nodal clearance in patients with stage III non-small cell lung cancer receiving neoadjuvant chemoradiation and surgery. Pract Radiat Oncol. 2017 Nov - Dec; 7 (6):e531-e541 Epub 2017 Apr 19 View PubMed Lester SC, Lin SH, Chuong M, Bhooshan N, Liao Z, Arnett AL, James SE, Evans JD, Spears GM, Komaki R, Haddock MG, Mehta MP, Hallemeier CL, Merrell KW. A Multi-institutional Analysis of Trimodality Therapy for Esophageal Cancer in Elderly Patients. Int J Radiat Oncol Biol Phys. 2017 Jul 15; 98 (4):820-828 Epub 2017 Feb 20 View PubMed Lin SH, Merrell KW, Shen J, Verma V, Correa AM, Wang L, Thall PF, Bhooshan N, James SE, Haddock MG, Suntharalingam M, Mehta MP, Liao Z, Cox JD, Komaki R, Mehran RJ, Chuong MD, Hallemeier CL. Multi-institutional analysis of radiation modality use and postoperative outcomes of neoadjuvant chemoradiation for esophageal cancer. Radiother Oncol. 2017 Jun; 123 (3):376-381 Epub 2017 Apr 25 View PubMed Arnett A, Day C, Harmsen W, Merrell K. Definitive chemotherapy and radiation in the treatment of stage IV anal cancer: Analysis of the National Cancer Database. Ann Oncol. 2017 Jun; 28 Suppl 3:iii70 View PubMed Arnett ALH, Merrell KW, Martin Macintosh E, Macintosh EM, James SE, Nathan MA, Shen KR, Ravi K, Neben Wittich MA, Haddock MG, Hallemeier CL. Utility of (18)F-FDG PET for Predicting Histopathologic Response in Esophageal Carcinoma following Chemoradiation. J Thorac Oncol. 2017 Jan; 12 (1):121-128 Epub 2016 Aug 26 View PubMed Breen WG, Merrell KW, Mansfield AS, Wigle DA, Garces YI, Park SS, Olivier KR, Hallemeier CL. Predictors of relapse and evaluation of the role of postoperative radiation therapy in a modern series of patients with surgically resected stage III (N2) non-small cell lung cancer. Adv Radiat Oncol. 2017 Jan-Mar; 2 (1):12-18 Epub 2016 Dec 21 View PubMed Birckhead BJ, Fossum CC, Deufel CL, Furutani KM, Merrell KW, Schueler BA, Mynderse LA, Choo R, Davis BJ. Stranded seed displacement, migration, and loss after permanent prostate brachytherapy as estimated by Day 0 fluoroscopy and 4-month postimplant pelvic x-ray. Brachytherapy. 2016 Nov - Dec; 15 (6):714-721 Epub 2016 Aug 16 View PubMed Birekhead BJ, Fossum CC, Deufel CL, Furutani KM, Merrell KW, Schueler BA, Mynderse LA, Choo R, Davis BJ. Stranded seed displacement, migration, and loss after permanent prostate brachytherapy as estimated by day 0 fluoroscopy and 4-month postimplant pelvic x-ray Brachytherapy. 2016 Nov-dec; 15: (6)714-21. Arnett AL, Packard AT, Garces YI, Merrell KW. P1.21: Novel PET Parameters as Predictors of Pathologic Response in Patients With Stage IIIA(N2) NSCLC Receiving Trimodality Therapy: Track: Early Stage NSCLC (Stage I - III). J Thorac Oncol. 2016 Oct; 11: (10S)S194-S195. View PubMed Haddad MM, Merrell KW, Hallemeier CL, Johnson GB, Mounajjed T, Olivier KR, Fidler JL, Venkatesh SK. Stereotactic body radiation therapy of liver tumors: post-treatment appearances and evaluation of treatment response: a pictorial review. Abdom Radiol (NY). 2016 Oct; 41 (10):2061-77 View PubMed Chuong MD, Hallemeier CL, Jabbour SK, Yu J, Badiyan S, Merrell KW, Mishra MV, Li H, Verma V, Lin SH. Improving Outcomes for Esophageal Cancer using Proton Beam Therapy. Int J Radiat Oncol Biol Phys. 2016 May 1; 95 (1):488-497 Epub 2015 Dec 14 View PubMed Merrell KW, Haddock MG, Quevedo JF, Harmsen WS, Kendrick ML, Miller RC, Hallemeier CL. Predictors of Locoregional Failure and Impact on Overall Survival in Patients With Resected Exocrine Pancreatic Cancer. Int J Radiat Oncol Biol Phys. 2016 Mar 1; 94 (3):561-70 Epub 2015 Nov 10 View PubMed Sio TT, Merrell KW, Beltran CJ, Ashman JB, Hoeft KA, Miller RC, Whitaker TJ, Wurgler SK, Tryggestad EJ. Spot-scanned pancreatic stereotactic body proton therapy: A dosimetric feasibility and robustness study. Phys Med. 2016 Feb; 32 (2):331-42 Epub 2016 Feb 13 View PubMed Merrell KW, Johnson JE, Mou B, Barney BM, Nelson KE, Mayo CS, Haddock MG, Hallemeier CL, Olivier KR. Stereotactic body radiotherapy for primary and metastatic liver tumors - the Mayo Clinic experience. J Radiosurg SBRT. 2016; 4 (2):133-144 View PubMed Sio TT, Mirimanoff RO, Ozyar E, Belkacemi Y, Miller RC, Villa S, Thariat J, Krengli M, Scandolaro L, Atalar B, Ugurluer G, Garcia BG, Ashman JB, Anacak Y, Onal C, Arat M, Sun XS, Tesanovic D, Lassen-Ramshad Y, Oksuz D, Dinhbas Dincbas F, Sezen D, Akyurek S, Kutuk T, Bolukbasi Y, Eren G, Parvani NN, Ahmed SK, Moretti L, Merrell KW, Chang K, Mayeda M, Arnett AL, Habboush JY, Ozsahin Mq, on behalf of the Rare Cancer Network Investigators. The present and future opportunities of the rare cancer network: An international consortium for advancement of oncologic care. Rare Tumors. 2015; 7(3):136-41. Merrell K, Crofts J, Smith R, Sin J, Kmetzsc K, Merrell A, Miguel R, Candelaria N, Lin C. Differential recruitment of nuclear receptor coregulators in ligand-dependent transcriptional repression by estrogen receptor-a. Oncogene.2011;30:(13):1608-14. Qi X, White J, Rabinovitch R, Merrell K, Sood A, Bauer A, Wilson JF, Miften M, Li A. Respiratory organ motion and dosimetric impact on breast and nodal irradiation. Int J Radiat Oncol Biol Phys.2010;78:(2):609-17. Müller P, Merrell KW, Crofts JD, Rönnlund C, Lin C-Y, Gustafsson J-A, Ström A. Estrogen-dependent downregulation of hairy and enhancer of split homolog-1 gene expression in breast cancer cells is mediated via a 3' distal element. 200 (3):311-319. J Endocrinol.2009;200:(3):311-9. PST-20434011 Home Publications